Sistemi za indukcijsko prenosno zvočnih signalov omogočajo uporabnikom slušnih aparatov s tuljavo (T-tuljavo) ali sprejemniki z induktivnim sprejemnikom, npr. LR-202, da prejemajo zvočne signale. Prednost sistema za indukcijsko petljo je brezžični prenos, ki uporabniku omogoča prosto gibanje znotraj zanke.
Sistemi za indukcijsko petljo se uporabljajo v različne namene, na primer kot pomoč za sluh pri slabovidnih v verskih objektih, gledališčih, kinodvoranah, čakalnicah in avlah, kot prevajalni sistemi, za predavanja v muzejih, razstavah itd.
Pri sistemih za indukcijsko petljo se na tla, steno ali vzdolž stropa položi induktivna zanka iz navite žice, ki jo krmili ojačevalnik s konstantnim tokom. Tako se znotraj zanke ustvari magnetno polje, ki v tuljavi slušnega aparata ali v sprejemniku induktivne zanke inducira napetost. V sprejemnikih se ta napetost nato ponovno pretvori v zvočni signal.
Active loop amplifier, in constant current technology with dynamic compressor for setting up an audio induction loop system in rooms up to 200 m2.
Inductive transmission of audio signals allows users of hearing aids with a T-coil or induction loop receivers, e.g. the LR-202, to receive audio signals. Wireless transmission is an advantage of audio induction loop systems which makes it possible for the user to move freely within the loop.
Audio induction loop systems are used for various applications, e.g. as a hearing aid for the hearing impaired in houses of worship, theatres, cinemas, waiting rooms and lounges, as interpreting systems, for lectures in museums, exhibitions, etc.
With audio induction loop systems, an induction loop made of a wire winding is laid on the floor, the wall or along the ceiling and is controlled by a constant current amplifier. Thus, a magnetic field is created within the loop which induces a voltage into the T-coil of the hearing aid or into the induction loop receiver. In the receivers, this voltage is then converted again into an audio signal.
Dynamic compressor
Automatic talkover
Metal loss correction 0-3 dB/oct.
3 mic/line inputs with 40 V phantom power, to be switched on additionally
6.3 mm input for inserting external devices
Integrated SD card reader for reproduction of stored alarm messages
2-way tone control
LED level meter
482 mm (19″) rack installation with supplied mounting brackets
